In the preparation and promotion of its widely touted encyclical, Laudato Si: On Care for Our Common Home, the Vatican relied on advisors who can only be described as the most extreme elements in the global warming debate. These climate advisors are so far out of the mainstream they even make some of their fellow climate activists cringe. Many of these advisors oppose individual freedom and market economics and stand against traditional family values.

The Vatican and Pope Francis did not allow dissent or alternative perspectives to be heard during the creation and promotion of the encyclical. The Vatican only listened to activist voices within the climate movement.

There has been nothing short of an “Unholy Alliance” between the Vatican and promoters of man-made climate fear. The Vatican advisors are a brew of anti-capitalist, pro-population control advocates who allow no dissent and are way out of the mainstream of even the global warming establishment.

Here are profiles of some of the key radical voices with whom the Vatican has associated itself.

Jeffrey Sachs, a special advisor to UN Secretary General Ban Ki-moon, participated in a 2014 Vatican workshop on sustainability as well as in the Vatican summit on climate that took place in April 2015. Sachs was reportedly the author of the Pontifical statement, Climate Change and the Common Good: A Statement of the Problem and the Demand for Transformative Solutions, issued on April 29, 2015.

“At a 2007 international lecture, Sachs claimed that ‘we are bursting at the seams.’ The focus of Sachs’ overpopulation mantra is primarily the continent of Africa. He argues that if only poor African countries would just lower their fertility rate, the world and Africa would thrive economically. This fear mongering is nothing new. Sachs is standing on the shoulders of Paul Ehrlich, architect of the ‘sky is falling’ deception perpetrated in his 1968 book, The Population Bomb.”

Yore concluded: It is “incomprehensible that the Vatican would be duped into thinking that the United Nations and its Millennium and Sustainable Development goals share common solutions for the world’s problems. The Catholic Church welcomes children as a gift from God. The UN Secretary General and Jeffrey Sachs want to limit children.”

In 2009, Sachs addressed the annual conference of the Party of European Socialists. He described the “profound honor” of addressing the far-Left Party of European Socialists and said they were heirs and leaders of the most successful economic and political system in the world — Social Democracy. Social equity, environmental sustainability, and fiscal redistribution are the successful elements in managing a just society, Sachs maintained. This is, he argues, in marked contrast to the U.S., whose taxes are too low and where the poor are ignored.

In 2009, in advance of the Copenhagen UN climate meeting, Sachs called for a carbon levy, claiming that millions were suffering because of drought caused by Western-induced climate change. Sachs has advocated for a carbon tax and a financial transactions tax, a global health fund, a global education fund, and a global climate fund. Sachs’ Earth Institute at Columbia has included members of an external advisory board such as George Soros and Rajendra Pachauri, former UN IPCC chairman. Soros has funded Sachs via his Open Society Institute.